/* ============================================================
   GoTools - Sidebar Navigation Styles
   Collapsible sidebar with categories & sub-menus
   ============================================================ */

/* ===== SIDEBAR CONTAINER ===== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(247, 249, 255, 0.96) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid rgba(226, 232, 240, 0.8);
    display: flex;
    flex-direction: column;
    z-index: var(--z-sidebar);
    transition: width var(--transition-base), transform var(--transition-base);
    overflow: hidden;
    box-shadow: 4px 0 25px rgba(99, 102, 241, 0.02);
}

/* ===== SIDEBAR LOGO ===== */
.sidebar-logo {
    padding: 18px 20px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    min-height: 68px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    overflow: hidden;
}

.logo-icon-wrap {
    width: 38px;
    height: 38px;
    min-width: 38px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: transform var(--transition-bounce);
}

.logo-link:hover .logo-icon-wrap {
    transform: scale(1.1) rotate(10deg);
}

.logo-text-wrap {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    white-space: nowrap;
}

.logo-name {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.logo-tagline {
    font-size: 0.625rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 600;
}

.sidebar-collapse-btn {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.sidebar-collapse-btn:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

body.sidebar-collapsed .sidebar-collapse-btn svg {
    transform: rotate(180deg);
}

/* ===== SIDEBAR SEARCH ===== */
.sidebar-search {
    padding: 14px 16px;
    flex-shrink: 0;
    position: relative;
}

.search-input-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(241, 245, 249, 0.6);
    border: 1.5px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    transition: all var(--transition-fast);
}

.search-input-wrap:focus-within {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-input-wrap svg {
    color: var(--gray-400);
    flex-shrink: 0;
}

.search-input-wrap input {
    flex: 1;
    border: none;
    background: none;
    font-size: 0.8125rem;
    color: var(--text-primary);
    min-width: 0;
}

.search-input-wrap input::placeholder {
    color: var(--gray-400);
}

.sidebar-search-results {
    top: calc(100% - 4px);
    left: 16px;
    right: 16px;
}

/* ===== SIDEBAR NAVIGATION ===== */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px 10px;
    scrollbar-width: thin;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--gray-200);
    border-radius: var(--radius-full);
}

/* ===== NAV ITEMS ===== */
.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    font-size: 0.8375rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    margin-bottom: 2px;
}

.nav-item:hover {
    background: rgba(99, 102, 241, 0.04);
    color: var(--text-primary);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
    color: var(--primary-dark);
    font-weight: 700;
    border: 1px solid rgba(99, 102, 241, 0.1);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.03);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20%;
    height: 60%;
    width: 4px;
    background: var(--primary-gradient);
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

.nav-icon {
    width: 32px;
    height: 32px;
    min-width: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    background: color-mix(in srgb, var(--cat-color, var(--primary)) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--cat-color, var(--primary)) 22%, transparent);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-item:hover .nav-icon,
.nav-group-header:hover .nav-icon {
    transform: scale(1.1) rotate(-3deg);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.nav-text {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ===== NAV GROUPS (Categories with sub-items) ===== */
.nav-group {
    margin-bottom: 2px;
}

.nav-group-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    font-size: 0.8375rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-group-header:hover {
    background: rgba(99, 102, 241, 0.04);
    color: var(--text-primary);
}

.nav-group.active > .nav-group-header {
    color: var(--primary-dark);
    font-weight: 700;
}

.nav-group.open > .nav-group-header {
    background: rgba(99, 102, 241, 0.02);
    color: var(--text-primary);
}

.nav-badge {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--primary-dark);
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.12);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    margin-left: auto;
    line-height: 1.4;
}

.nav-arrow {
    color: var(--gray-400);
    transition: transform var(--transition-fast);
    flex-shrink: 0;
    margin-left: 6px;
}

.nav-group.open > .nav-group-header .nav-arrow {
    transform: rotate(90deg);
    color: var(--primary);
}

/* ===== SUB-MENU ===== */
.nav-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    background: rgba(99, 102, 241, 0.02);
    border-radius: var(--radius-lg);
    margin: 2px 12px 6px 20px;
    padding: 0;
    border-left: 2.5px solid rgba(99, 102, 241, 0.18);
    box-shadow: inset 1px 1px 4px rgba(99, 102, 241, 0.01);
}

.nav-group.open > .nav-submenu {
    max-height: 1200px;
    padding: 6px 0;
}

.nav-subitem {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 12px 6px 14px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin: 2px 6px;
    position: relative;
}

.nav-subitem:hover {
    color: var(--primary-dark);
    background: rgba(99, 102, 241, 0.06);
}

.nav-subitem.active {
    color: var(--primary-dark);
    font-weight: 700;
    background: rgba(99, 102, 241, 0.1);
}

.subitem-dot {
    width: 6px;
    height: 6px;
    min-width: 6px;
    border-radius: 50%;
    background: var(--gray-300);
    transition: all var(--transition-fast);
}

.nav-subitem:hover .subitem-dot {
    background: var(--primary-light);
    transform: scale(1.3);
    box-shadow: 0 0 6px var(--primary-light);
}

.nav-subitem.active .subitem-dot {
    background: var(--primary);
    transform: scale(1.5);
    box-shadow: 0 0 8px var(--primary);
}

/* ===== NAV DIVIDER ===== */
.nav-divider {
    height: 1px;
    background: rgba(226, 232, 240, 0.6);
    margin: 12px 14px;
}

/* ===== SIDEBAR FOOTER ===== */
.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid rgba(226, 232, 240, 0.6);
    flex-shrink: 0;
}

.admin-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.admin-link:hover {
    background: rgba(99, 102, 241, 0.04);
    color: var(--primary);
}

.admin-link svg {
    flex-shrink: 0;
}

/* ===== SIDEBAR COLLAPSED STATE ===== */
body.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
}

body.sidebar-collapsed .sidebar .logo-text-wrap,
body.sidebar-collapsed .sidebar .nav-text,
body.sidebar-collapsed .sidebar .nav-badge,
body.sidebar-collapsed .sidebar .nav-arrow,
body.sidebar-collapsed .sidebar .logo-tagline,
body.sidebar-collapsed .sidebar .sidebar-search,
body.sidebar-collapsed .sidebar .sidebar-footer span,
body.sidebar-collapsed .sidebar .admin-link span {
    display: none;
}

body.sidebar-collapsed .sidebar .nav-item,
body.sidebar-collapsed .sidebar .nav-group-header {
    justify-content: center;
    padding: 10px;
}

body.sidebar-collapsed .sidebar .nav-submenu {
    max-height: 0 !important;
}

body.sidebar-collapsed .sidebar .nav-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
}

body.sidebar-collapsed .sidebar .sidebar-logo {
    justify-content: center;
    padding: 16px 10px;
}

body.sidebar-collapsed .sidebar .logo-link {
    justify-content: center;
}

body.sidebar-collapsed .sidebar .sidebar-footer {
    padding: 12px 10px;
}

body.sidebar-collapsed .sidebar .admin-link {
    justify-content: center;
    padding: 10px;
}

/* Tooltip on hover for collapsed sidebar */
body.sidebar-collapsed .sidebar .nav-item,
body.sidebar-collapsed .sidebar .nav-group-header {
    position: relative;
}

body.sidebar-collapsed .sidebar .nav-item::after,
body.sidebar-collapsed .sidebar .nav-group-header::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--gray-900);
    color: var(--white);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all var(--transition-fast);
    z-index: 200;
}

body.sidebar-collapsed .sidebar .nav-item:hover::after,
body.sidebar-collapsed .sidebar .nav-group-header:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Small arrow indicator on collapsed desktop sidebar for expandable groups */
body.sidebar-collapsed .sidebar .nav-group-header::before {
    content: '';
    position: absolute;
    bottom: 4px;
    right: 10px;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid var(--gray-400);
    transition: all var(--transition-fast);
    z-index: 2;
}

body.sidebar-collapsed .sidebar .nav-group.open > .nav-group-header::before {
    border-top-color: var(--primary);
    transform: rotate(180deg);
}

body.sidebar-collapsed .sidebar .nav-group-header:hover::before {
    border-top-color: var(--primary);
}

/* ===== SIDEBAR OVERLAY (Mobile) ===== */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    z-index: calc(var(--z-sidebar) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ===== MOBILE HEADER ===== */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--white);
    border-bottom: 1px solid var(--border-light);
    z-index: var(--z-mobile-header);
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    box-shadow: var(--shadow-xs);
}

.hamburger-btn {
    width: 40px;
    height: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.hamburger-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 6px;
}

.mobile-logo .logo-bolt {
    -webkit-text-fill-color: initial;
}

.mobile-search-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.mobile-search-btn:hover {
    background: var(--gray-100);
}

/* ===== MOBILE SEARCH OVERLAY ===== */
.mobile-search-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    z-index: calc(var(--z-mobile-header) + 1);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    transition: transform var(--transition-base);
}

.mobile-search-overlay.active {
    transform: translateY(0);
}

.mobile-search-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
}

.mobile-search-bar svg {
    color: var(--gray-400);
    flex-shrink: 0;
}

.mobile-search-bar input {
    flex: 1;
    border: none;
    background: none;
    font-size: 0.9375rem;
    color: var(--text-primary);
    padding: 8px 0;
}

.mobile-search-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--gray-400);
    border-radius: var(--radius-md);
}

/* ===== MOBILE BOTTOM NAVIGATION ===== */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--white);
    border-top: 1px solid var(--border-light);
    z-index: var(--z-mobile-nav);
    align-items: center;
    justify-content: space-around;
    padding: 0 8px;
    padding-bottom: env(safe-area-inset-bottom);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 6px 12px;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-size: 0.625rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    text-align: center;
    min-width: 0;
    flex: 1;
}

.bottom-nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.bottom-nav-item.active {
    color: var(--primary);
}

.bottom-nav-item.active svg {
    stroke: var(--primary);
}

.bottom-nav-item:hover {
    color: var(--primary);
}